Zheng Quan Shi Bao Wang·2025-09-18 09:41Group 1 - The copper cable high-speed connection concept rose by 1.27%, ranking third among concept sectors, with 20 stocks increasing, including Huafeng Technology with a 20% limit up, and Changfei Optical Fiber and Far East Holdings also hitting the limit up [1][2] - Notable gainers in the sector included Changying Precision, Zhongtian Technology, and Fujida, which rose by 9.04%, 6.97%, and 6.91% respectively [1][2] - The sector saw a net inflow of 0.87 billion yuan from main funds, with 22 stocks receiving net inflows, and 8 stocks exceeding 0.1 billion yuan in net inflow, led by Zhongtian Technology with 0.786 billion yuan [2][3] Group 2 - The top three stocks by net inflow ratio were Zhongtian Technology, Far East Holdings, and Yutai Micro, with net inflow ratios of 12.40%, 12.31%, and 11.10% respectively [3] - The copper cable high-speed connection concept had significant trading activity, with Zhongtian Technology showing a trading volume of 78.58 million yuan and a turnover rate of 10.93% [3] - The sector's performance was contrasted by declines in stocks such as Jintian Co., Xinke Materials, and Chuangyitong, which fell by 4.03%, 3.52%, and 3.15% respectively [1][5]